JP2000098053A - Detection device - Google Patents
Detection deviceInfo
- Publication number
- JP2000098053A JP2000098053A JP10264804A JP26480498A JP2000098053A JP 2000098053 A JP2000098053 A JP 2000098053A JP 10264804 A JP10264804 A JP 10264804A JP 26480498 A JP26480498 A JP 26480498A JP 2000098053 A JP2000098053 A JP 2000098053A
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- JP
- Japan
- Prior art keywords
- signal
- detection
- cover
- detecting
- plot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Geophysics And Detection Of Objects (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、赤外線放射エネ
ルギーを用いて人体を検知するような検知装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detecting device for detecting a human body by using infrared radiation energy.
【０００２】[0002]
【従来の技術】赤外線放射エネルギーを受光し、その変
化から人体の有無を検知する検知装置が知られている。2. Description of the Related Art There is known a detecting device which receives infrared radiation energy and detects the presence or absence of a human body from the change.
【０００３】しかしながら、受光する窓等に画策・妨害
がなされ、遮蔽されると正常な人体検知ができず、侵入
者の検出ができない問題点があった。[0003] However, there is a problem that if a plan or obstruction is made on a window or the like that receives light, and if it is blocked, a normal human body cannot be detected and an intruder cannot be detected.
【０００４】[0004]
【発明が解決しようとする課題】このため、別途、参照
赤外光を投光、受光して反射光があるときに妨害物体を
検知するものもあるが、検知能力は発光素子と受光素子
の配置で決まり、検知範囲が限定される等の問題点があ
った。For this reason, there is another type which separately projects and receives reference infrared light and detects an interfering object when there is reflected light. However, the detection capability of the light emitting element and the light receiving element is limited. There is a problem that it is determined by the arrangement and the detection range is limited.
【０００５】この発明の目的は、以上の点に鑑み、簡易
な構成で、効果的に画策・妨害検知を可能とした検知装
置を提供することである。An object of the present invention, in view of the above, is to provide a detection device which is capable of effectively detecting a plan and interference with a simple configuration.
【０００６】[0006]
【課題を解決するための手段】この発明は、放射エネル
ギーを受光し人体を検出するための放射検出器と、電波
を送信して反射信号を受信し受信信号のドップラー効果
による周波数変化から検知装置本体に近接する移動物体
を検知する画策物体検知手段とを備えるようにした検知
装置である。SUMMARY OF THE INVENTION The present invention relates to a radiation detector for receiving radiant energy and detecting a human body, and a detecting device for transmitting a radio wave to receive a reflected signal and detecting a frequency change due to a Doppler effect of the received signal. And a projecting object detecting means for detecting a moving object approaching the main body.
【０００７】[0007]
【発明の実施の形態】図１は、この発明の一実施例を示
す構成説明図である。図１（ａ）において、１は検知装
置本体の器体で、天井や壁に取り付けられ、測定手段、
警報用の演算手段等が内蔵されている。この器体１には
カバー２が取り付けられ前面部には窓部２ａが設けられ
ている。この窓部２ａは赤外線を透過し、例えばレンズ
等の光学手段とされている。もちろん、別途カバー内に
反射光学手段を設けてもよい。そして、カバー２内に
は、焦電素子、サーモパイル、サーミスタボロメータ等
の放射検出器３が設けられ、窓部２ａ等の光学手段で集
光され警戒範囲Ａについての赤外線放射エネルギーを受
光して検出する。また、同様にカ バー２内には、窓部
２ａを介し、微弱なマイクロ波のような電波を送信して
反射信号を受信し、この反射信号のドップラー効果によ
る周波数変化から、警戒範囲Ｂについての、検知装置本
体に近接移動する物体を検知する画策物体検知手段４が
設けらている。また、窓部２ａからの赤外線は、画策物
体検知手段４の近接検知範囲を必ず通過するように構成
されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention. In FIG. 1A, reference numeral 1 denotes a body of a detection device main body, which is attached to a ceiling or a wall,
An arithmetic unit for alarm and the like are built in. A cover 2 is attached to the body 1 and a window 2a is provided on the front surface. The window 2a transmits infrared rays and is an optical unit such as a lens. Of course, reflective optical means may be separately provided in the cover. In the cover 2, a radiation detector 3 such as a pyroelectric element, a thermopile, or a thermistor bolometer is provided. The radiation detector 3 receives and detects infrared radiation energy in the warning range A which is collected by optical means such as a window 2a. I do. Similarly, a weak radio wave such as a microwave is transmitted through the window 2a into the cover 2 to receive a reflected signal, and a change in frequency due to the Doppler effect of the reflected signal indicates a warning range B. Of the present invention, an object detecting means 4 for detecting an object moving close to the main body of the detecting device. Also, the infrared rays from the window 2a are configured to pass through the proximity detection range of the object detecting means 4 without fail.
【０００８】つまり、図１（ｂ）を参照し、警戒範囲Ａ
からの放射エネルギーは放射検出器３で検出され、人間
が存在しているときに出力信号を発生し、測定手段５で
所定の値と比較され、所定の値より大きいとき検知信号
Ｅ１として演算手段６に送られる。この演算手段６で
は、例えば複数回の連続した検出信号Ｅ１で人体検知を
示す警報信号Ｓ１を発生する等の警報処理を行う。That is, referring to FIG.
Is detected by the radiation detector 3, generates an output signal when a person is present, is compared with a predetermined value by the measuring means 5, and when it is larger than the predetermined value, it is calculated as a detection signal E1. Sent to 6. The arithmetic means 6 performs an alarm process such as generating an alarm signal S1 indicating human body detection with a plurality of continuous detection signals E1.
【０００９】警戒範囲Ｂについて、画策物体検知手段４
から、微弱なマイクロ波のような所定の周波数の電波を
送信する。画策等の妨害用カバーや人間の手等の近接移
動中の画策物体があると、この物体を反射して受信した
信号の周波数はドップラー効果により変化する。つま
り、反射信号と送信信号とでは周波数が異なり、例えば
これらの信号を重畳させると、うなり信号を生じる。こ
のうなり信号の強度を、測定手段７で所定の値と比較
し、所定の値より大きいとき、検知信号Ｅ２として演算
手段６に送られる。このとき、演算手段６では、検知信
号Ｅ２により、カバー２の窓部２ａに画策等の異常物体
の接近等があったとして、妨害異常を示す警報信号Ｓ２
を発生する。なお、画策物体を示す検知信号Ｅ２発生後
に実際に人体検知を示す検知信号Ｅ１が一定時間以上発
生しないときに、実際にカバー等に妨害があったと判定
し警報信号Ｓ２を外部に発生するようにしてもよい。こ
の場合、妨害・画策物体を示す検知信号Ｅ２発生後に人
体を示す検出信号Ｅ１が発生したときは、正常と判定
し、警報信号Ｓ２を外部に発生しないようにする。[0009] With regard to the caution range B, the plan object detection means 4
, A radio wave of a predetermined frequency such as a weak microwave is transmitted. If there is a moving object such as a cover for obstacles such as a drawing or a human hand, the frequency of a signal received by reflecting the object changes due to the Doppler effect. That is, the reflected signal and the transmission signal have different frequencies. For example, when these signals are superimposed, a beat signal is generated. The intensity of the beat signal is compared with a predetermined value by the measuring means 7, and when it is larger than the predetermined value, it is sent to the calculating means 6 as a detection signal E2. At this time, the arithmetic means 6 determines that an abnormal object such as a plan has approached the window 2a of the cover 2 based on the detection signal E2, and generates an alarm signal S2 indicating a disturbance abnormality.
Occurs. When the detection signal E1 indicating the human body detection does not actually occur for a certain period of time after the generation of the detection signal E2 indicating the plan object, it is determined that the cover or the like is actually disturbed, and the alarm signal S2 is generated outside. You may. In this case, when the detection signal E1 indicating the human body is generated after the generation of the detection signal E2 indicating the obstruction / projection object, it is determined to be normal, and the alarm signal S2 is not generated outside.
【００１０】[0010]
【発明の効果】この発明は、放射エネルギーを受光し人
体を検出するための放射検出器と、電波を送信して反射
信号を受信し受信信号のドップラー効果による周波数変
化から検知装置本体に近接移動する物体を検知する画策
物体検知手段とを備えるようにした検知装置である。つ
まり、ドップラー効果を用いて画策異常物体の接近等の
妨害を検知するようにしているので、仮に周囲と等温の
物体が来ても、近接移動していると画策物体を検知で
き、妨害を効果的に発見できる。また、微弱なマイクロ
波を用いるようにすると、低消費電力化が図れ、検知距
離を短く設定することが容易になるので、中・遠距離で
の外乱の影響を受けにくい。According to the present invention, a radiation detector for receiving radiant energy and detecting a human body, and a radio wave are transmitted to receive a reflected signal and move closer to the main body of the detecting device from a frequency change due to the Doppler effect of the received signal. And a plan object detecting means for detecting a moving object. In other words, because the Doppler effect is used to detect disturbances such as the approach of a drawing abnormal object, even if an object that is isothermal with the surroundings comes, it can detect the drawing object if it is moving close to it, and the effect of the disturbance is reduced. Can be discovered. In addition, when a weak microwave is used, power consumption can be reduced, and the detection distance can be easily set short. Therefore, the detection is hardly affected by disturbance at medium and long distances.
【図１】この発明の一実施例を示す構成説明図である。FIG. 1 is a configuration explanatory view showing one embodiment of the present invention.
１ 器体 ２ カバー ２ａ 窓部 ３ 放射検出器 ４ 画策物体検知手段 ５、７ 測定手段 ６ 演算手段 DESCRIPTION OF SYMBOLS 1 Body 2 Cover 2a Window 3 Radiation detector 4 Plan object detection means 5, 7 Measurement means 6 Calculation means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 境野 靖 山形県天童市大字乱川1515番地 株式会社 山形チノー内 Ｆターム(参考） 5J070 AD02 AE09 AK22 AK40 BA01 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yasushi Sakai 1515 Ranagawa, Tendo-shi, Yamagata Prefecture F-term in Yamagata Chino F-term (reference) 5J070 AD02 AE09 AK22 AK40 BA01
Claims (1)
めの放射検出器と、電波を送信して反射信号を受信し受
信信号のドップラー効果による周波数変化から検知装置
本体に近接する移動物体を検知する画策物体検知手段と
を備えたことを特徴とする検知装置。1. A radiation detector for receiving a radiation energy to detect a human body, and transmitting a radio wave to receive a reflected signal and detect a moving object close to the main body of the detection device from a frequency change due to a Doppler effect of the received signal. A detecting device for detecting a target object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10264804A JP2000098053A (en) | 1998-09-18 | 1998-09-18 | Detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10264804A JP2000098053A (en) | 1998-09-18 | 1998-09-18 | Detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000098053A true JP2000098053A (en) | 2000-04-07 |
Family
ID=17408457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10264804A Pending JP2000098053A (en) | 1998-09-18 | 1998-09-18 | Detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000098053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050048809A (en) * | 2003-11-20 | 2005-05-25 | (주)태성엠아이에스 | Microwave detector having anti-masking circuit for crime prevention |
| KR20080075982A (en) * | 2007-02-14 | 2008-08-20 | 소나테크 주식회사 | Ultrasonic security device using time reversal mirror method |
| JP2009156596A (en) * | 2007-12-25 | 2009-07-16 | Takenaka Engineering Co Ltd | Opposing type composite sensor |
-
1998
- 1998-09-18 JP JP10264804A patent/JP2000098053A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050048809A (en) * | 2003-11-20 | 2005-05-25 | (주)태성엠아이에스 | Microwave detector having anti-masking circuit for crime prevention |
| KR20080075982A (en) * | 2007-02-14 | 2008-08-20 | 소나테크 주식회사 | Ultrasonic security device using time reversal mirror method |
| JP2009156596A (en) * | 2007-12-25 | 2009-07-16 | Takenaka Engineering Co Ltd | Opposing type composite sensor |
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